While the notice says it’s going away on February 28th, it actually is already gone on my Your Computer Lady business page. They will roll out this change across all business pages so you’ll have to watch your page to see when it happens.
Copy the content from your Story section TODAY and save it in a Word doc for reference.
Note that the About Page has become a minor page which is now hidden under the More drop-down.
The About Page itself has been re-designed. All of the details like Hours, Phone, etc. are at the top of the Page. The entire Story section is gone. (It had an additional photo and unlimited area for text. I used it to add keywords.)
Now there is only a About section which is limited to 255 characters.
You do have an Additional Information section. This appears to be unlimited text. Move your content from the Story section to this Additional Information section. Load it up with keywords to help people who are searching for your product or service.
Read this 01/06/21 update from Mari Smith about the latest FB changes. No more Page Likes. We’ll just have followers now. What does that mean for your business page?
How To Use Social Media for customer service – Good explanation with examples of how you can offer customer service on social media platforms. Many people expect customer service at their finger tips so it can be worth your time to offer it.
The organic reach for posts on Facebook business pages is extremely low. Typically, you’re lucky if about 10% of your audience sees one of your posts. Spending time creating content for Facebook that no one sees isn’t going to benefit your business. … What you need to do is create brand awareness, educate your audience, show your community involvement, and build excitement about what you do through that content. This approach ties directly into level one of your local business ad strategy on Facebook, which is about creating a larger top-of-funnel audience that will be receptive to your offers when they’re ultimately presented.” 
This article from Forbes gives you some great suggestions for how to improve your communications with your clients. It’s a new world so we need new methods as well improving the standard methods.